# US 11,077,936 B2 · Fluid delivery device

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- Number: US 11,077,936 B2
- Document ID: US11077936B2
- Status: Granted
- Kind: B2
- Application number: 15/874,967
- Filed: 2018-01-19
- Published: 2019-07-25
- Granted: 2021-08-03
- Earliest claimed: 2018-01-19
- Assignees: Textron Innovations Inc.
- Applicants: Bell Helicopter Textron Inc.
- Inventors: Charles Speller
- Web page: https://patentgrep.com/patent/US11077936B2

## CPC

- B64C 27/12: Rotor drives
- F16H 57/0435: {Pressure control for supplying lubricant; Circuits or valves therefor}
- F16H 57/0442: {for supply in case of failure, i.e. auxiliary supply}
- Y10T 137/87676: With flow control
- B64C: AEROPLANES; HELICOPTERS
- F16H: GEARING
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A fluid delivery device includes a body and a reed. The body has a primary inflow passage, a secondary inflow passage, and an outflow passage. The reed is disposed at least partially within the body. The reed is configured to move to a first position when a fluid flows from the primary inflow passage and move to a second position when the fluid flows from the secondary inflow passage.

## Claims

### Claim 1

A fluid delivery device, comprising:
a body comprising:
a primary inflow passage;
a secondary inflow passage; and
an outflow passage; and
a reed disposed at least partially within the body, wherein the reed is configured to:
move to a first position when a fluid flows from the primary inflow passage; and
move to a second position when the fluid flows from the secondary inflow passage; and
a secondary reed disposed at least partially within the body, wherein the reed and the secondary reed are configured to selectively move closer toward a center of a cavity when the fluid flows from the primary inflow passage.

### Claim 2 (depends on 1)

The fluid delivery device of claim 1, further comprising a valve that is disposed at least partially within the body.

### Claim 3 (depends on 2)

The fluid delivery device of claim 2, wherein the valve comprises a spring and a plug, the spring being configured to exert a force on the plug in a direction substantially towards the secondary inflow passage.

### Claim 4 (depends on 1)

The fluid delivery device of claim 1, wherein the fluid is a lubricant.

### Claim 5 (depends on 1)

The fluid delivery device of claim 1, wherein the reed comprises rubber.

### Claim 6 (depends on 1)

The fluid delivery device of claim 1, wherein the reed comprises stainless steel.

### Claim 7 (depends on 6)

The fluid delivery device of claim 6, wherein the reed comprises a first portion that is secured to the body and a third portion that is configured to:
move to the first position when the fluid flows from the primary inflow passage; and
move to the second position when the fluid flows from the secondary inflow passage.

### Claim 8 (depends on 1)

The fluid delivery device of claim 1, wherein the fluid is prevented from flowing out of primary inflow passage when the reed is in the second position.

### Claim 9 (depends on 1)

The fluid delivery device of claim 1, wherein when fluid flows from the primary inflow passage, fluid does not flow from the secondary inflow passage.

### Claim 10 (depends on 1)

The fluid delivery device of claim 1, wherein a spring force acts on the reed in a direction substantially towards the second position.

### Claim 11

A rotorcraft comprising:
a fuselage; and
a powertrain coupled to the fuselage, the powertrain comprising:
an engine; and
a gearbox, the gearbox comprising:
a fluid delivery device comprising:
a body comprising:
a primary inflow passage;
a secondary inflow passage; and
an outflow passage; and
a reed disposed at least partially within the body, wherein the reed is configured to:
move to a first position when a fluid flows from the primary inflow passage; and
move to a second position when the fluid flows from the secondary inflow passage; and
a secondary reed disposed at least partially within the body, wherein the reed and the secondary reed are configured to selectively move toward a center of a cavity when the fluid flows from the primary inflow passage.

### Claim 12 (depends on 11)

The rotorcraft of claim 11, the fluid delivery device further comprising a valve that is disposed at least partially within the body.

### Claim 13 (depends on 12)

The rotorcraft of claim 12, wherein the valve comprises a spring and a plug, the spring being configured to exert a force on the plug in a direction substantially towards the secondary inflow passage.

### Claim 14 (depends on 11)

The rotorcraft of claim 11, wherein the fluid is a lubricant.

### Claim 15 (depends on 11)

The rotorcraft of claim 11, wherein the reed comprises rubber.

### Claim 16 (depends on 11)

The rotorcraft of claim 11, wherein the reed comprises stainless steel.

### Claim 17 (depends on 16)

The rotorcraft of claim 16, wherein the reed comprises a first portion that is secured to the body and a third portion that is configured to:
move to the first position when the fluid flows from the primary inflow passage; and
move to the second position when the fluid flows from the secondary inflow passage.

### Claim 18 (depends on 11)

The rotorcraft of claim 11, wherein the fluid is prevented from flowing out of primary inflow passage when the reed is in the second position.

### Claim 19 (depends on 11)

The rotorcraft of claim 11, wherein when fluid flows from the primary inflow passage, fluid does not flow from the secondary inflow passage.

### Claim 20 (depends on 11)

The rotorcraft of claim 11, wherein a spring force acts on the reed in a direction substantially towards the second position.